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# Charles

Active since 2011

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Question

Two correlated random variables
I want a formula to generate two random variables X and Y that are correlated with a certain rho and distributed (0, 1). The fo...

7 years ago | 0 answers | 0

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Question

string to num
Hi, I am reading string data of this format from a text file: (20:200,40:300) This is the area of an image which I wish...

11 years ago | 2 answers | 1

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Question

Hi, I have a text file which contains the following data format 3 abc (1:200, 200: 400) bcd (1:300, 200: 300) cde (1:100, 2...

11 years ago | 1 answer | 0

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Question

Align two arrays by time column
Someone already asked this question, however there is no answer. "Does anyone know of a MatLab utility to facilitate alignment ...

11 years ago | 1 answer | 0

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Question

Search through Cell
Hi, I have problem working with cells. I have a 1 x 4 cell with each cell containing an N X 1 column vector. How do I search ...

11 years ago | 2 answers | 0

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Question

Structures
I have loaded data that contain structures. The structures are of the form I have variable : struct1, struct2, struct3.... I ha...

11 years ago | 2 answers | 0

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Random number generation open/closed interval
I think that the easy solution would be to generate the regular random numbers, then set all values <= 0.5 to 0 and values > 0....

11 years ago | 0

Question

Marix manipulation
How do I perform this operation? I have a data set with recurring values at a given co-ordinate. I need to sum values of the rep...

11 years ago | 1 answer | 0

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Question

Optimal arrangement of a small vector within a lager vector
Hi all,this is about the 3rd time I am posting this question as I do not have an answer yet. I simplified the original problem. ...

11 years ago | 2 answers | 0

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Question

Optimize vector position and values to form another vector.
Hi, I am stuck with a problem which I do not know how to proceed. I have 2 vectors: a = [1 2 3 2 1]; b = zeros(1, 11); I wa...

11 years ago | 2 answers | 1

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Question

Optimization
*Modified Post* I have a 3D matrix of this form: gauss = values(3,3,3) i.e gauss(:,:,1) = 0.0155 0.0622 0.015...

11 years ago | 0 answers | 0

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Question

3d slice viewer
Hi, I have a matrix of doubles having values x, y, z and intensity. I want to create a simple 3d viewer to browse through th...

11 years ago | 1 answer | 0

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Question

Help vectorize my poor code or make it faster
I have an N X 4 dimensional data with information of x,y,z coordinates and Intensity values of a 3D image. I need to reconstruct...

12 years ago | 2 answers | 0